Feeding device for book-sewing machines



March 2Q, 1928.

E. B. PIERCE FEEDING DEVICE FOR BOOK SEWING MACHINES,

OriginalF'iled Sept. 12. 1919 2 Sheets-Sheet 1 I lNVENTOR Eda/272 B. Pierce ATTORNEY March 20, 1928.

1,662,897 E. B. PIERCE FEEDING DEVICE FOR BOOK SEWING MACHINES Original Filed se tllz. 1919 2 sheets-sheet 2 IEVENTOR 1 Edugz'n B. Pzrce.

ATTORNEY Patented Mar. 20, 1928.

EDWIN B. PIERCE, or BROOKLYN, New Yong,

FEEDING DEVICE non BOOK-SEWING MACHINES.

Application filed September 12, 1919, Serial No. 323,251. Renewed April 30, 1927.

My invention relatestoimprovements in feeding mechanism for book sewing machines. It has been customary to place the signatures, which are to be sewed together to form a book successively" on a receiver which moves so rapidly that the signature could not be placed on it while in motion; the movement of the receiver being necessarily interrupted to allow time for-placing the signature. The principal purpose 'ofmy invention is to, provide a. series of continuously moving receiving arms each. of which will engage in given position with a single punching saddle, the receiving arms moving at such speed that the signature may be placed on them, without interrupting or re tarding movement.

Referring to the accompanying drawings, Fig 1 shows in side elevation, parts being broken away, a part of a book sewing ma chine illustrating an embodiment of my invention. Fig. 2 is a view looking from left to right at one of the receiving arms of the series showing the upper right hand corner of Fig. 1. Fig. 3 is an enlarged detail, looking from right to left, atthe sprocket wheel and spider mechanism shown in the upper right hand corner of Fig. 1. Fig. 4 is an enlarged cross sectional detail of the upper portion or cross bar of the saddle.

. Referring to Fig. 1, 5 indicates one of the frames of the machine of which two are provided identical in outline held together by a cross frame. The frames are provided with suitable bearings supporting the drive shaft and the cam shaft 8. On the cam shaft is mounted and secured a crank 33, having a crank pin and roller 34,which moves in the variably curved slot 35" of the crank 36". 37" is a rockshaft in suitablebearings in the frame 5 to which the crank 36 is secured. Mounted and secured on the rockshaft 37 are two similar arms 38, each having an extension as 39 and carrying a counter weight 40. In suitable bearing in arms 38 is arockshaft which supports the signature carrying and perforating saddle. This saddle consists essentially of the upright side bar 41 and the hollow cross bar, within which is the vertically movable slide 42 car'ryinga series of punches suitably spaced for perforating the signatures. preparatory to sewing.

At a suitable positionin each of the side bars 41 of the saddle,' a wrist pinis secured, carrying a roller 35 adaptedto move in immediately. upward again traveling the entire distance between its highest and lowest positions in either directionwithout interruption. I v

7 indicates bracket secured by bolts to the frame 5 and an auxiliary bracket secured by bolts to the side of the bracket 7 The hubs of the brackets are concentricandjbored through to provide bearings for the rotary part-s oft-he feeding device. 13 indicatesa spider having a number of arms each ,car-

ry ng a receiving plate 22. .11 indicates a sprocket wheel secured to, the hub of the spider 13. 10 is a sprocket chain and 9 a sprocket wheel which is secured to the. shaft 8. sprocket wheel 11 must have a ratio to the number of teeth on the sprocket wheel 9 equal to the number of receiving plates carried by the, spider 13. If three plates are used, as illustrated, and the diameter of wheel 11 is threeyti nes the diameter of wheel 9, it is evident that the saddle moves from the position shown through one complete cycle returning to the same position again. The plate shown asin contact with the apex of the saddle, will have ad.- vanced through one thijrd of itsrot-at-ion and the next succeeding plate will have reached the point of Contact with the saddle. As the signatures after being placed on. the plates 22*a1e held in plaeelby gravity until they are lifted by the saddle, t is evident that the plates 22; must; always; stand at the same angle of elevatiom that is,in the same position relative to a ,horizontalline, To accomplish this, a planetary .gearmechanis n spm de as illustra ed in de ail. ifF gS.

Re ring QsE g- 3, 161 ndica es he h b. of the spider 1 3.which, extends through the bearing bracket 7 and, through the hubfofp e k h el Th s; Whfitl ,1 is Se r d was hub ba a eaven ea e The number of teeth on the such as the binding screw 16. 12 indicates a shaft which extends through a central bore of the hub 14 and is secured in the auxiliary bracket 7 by the binding screw. Thus spider 18 will turn with the sprocket wheel 11 while the shaft 12 is stationary. 17 is a stationary gear mounted on the shaft 12 and secured by the binding screw 19. In the spider 13 are fixed studs 13 on which are loosely mounted gears 20 which are in mesh with the stationary gear 17. The frame 35 is providedwith suitable bearings, through which the shaft 36 extends, and also'a projecting hub or sleeve 37 to which is secured the gear 21. 22 is one ofthe plates on which the signatures are placed by the operator. It is secured to the frame by screws or rivets as indicated. The gear 21 has the same pitch diameter as the central gear 17 and is in mesh with one of the intermediate gears. If the spider 13 be drivenaround the shaft 12, plate 22will be carried in a circu lar path around gear 17 but because of the reversing effect of the intermediate gear will maintain the same angle of elevation in all positions as shown in Fig. 1. The angle of elevation of the plate22 may be varied or adjusted by loosening'the binding screw and turning the gear 17 slightly to right or left as required. The signature supporting edge of the plate 22 travels in a circular path eccentric to the shaft 12 and concentric of shaft 36. In order to prevent actual con tact andconsequent abrasion of the plates while passing at the intersecting point, the upper edge of each plate is cut away where the points of the punches would otherwise strike as shown in Fig. 2.

The folded signatures are sharply and permanently creased at the fold and have a tendency to collapse on the receiving plates and a spreading or opening device is required to hold the signature away from the lower side of the plate and provide a suit cient angle for the saddle to enter the signature without interference.

Referring to Fig. 2, ashaft 38' is held in hearings in the frame 25 are supports fastened to the shaft 38 and a rod 39 is fastened to the upper ends of the supports 25. 24; is a pin inserted in the shaft 38 and having its upper end shaped as a gear tooth and entering a corresponding groove in the hub of the lever 28. 29 isa stationary cam secured to the guide plate 37 having its working face formed on a separate piece which is adjustable by means of the fulcrum 30 andthe slot 31 and binding screw 32. By the rotation of the spider 13 the projection of the lever 28 is pressed against the cam 29, forcing it to turn backward around the hub and by reacting against the pin 24 moving the rod outward and downward from the plate 22 and holding the lower edge of the signature in suitable position for the saddle to enter. A coiled spring 26 is provided which presses against the support 25 tending to keep the rod in its normal position against the lower side of the receiving plate, and returning it to that position, when the lever 28 is released from the cam 29.

To secure the proper alignment of the sig natures on the several plates and to determine their position in relation to the punches, adjustable gauges 12 are provided as illustrated in Fig. 2. In practice the va' rious signatures are opened slightly and slipped successively over the feed plates from which they are taken automatically by the saddle as described. a i 7 Of course it will be understood that various modifications may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.

I claim: j I

' 1. In a book sewing machine, a saddle adapted to receive and support signatures and havingmovable supports, guides to determine the path in which it travels, a feedingdevice comprising a reel rotating about a horizontal axis and carrying several arms or plates adapted to receive and transfer signatures, means for actuating the saddle and for rotating thereel so proportioned that the saddle shall pass through as many complete cycles of its movement as there are receiving plates on the reel during each complete rotation of the reel.

2 A signature feeding device comprising a reel rotating about a horizontal axis and carrying several plates adapted to receive and transfer signatures, nieansfor rotating the reel, and means formaintaining all of the said plates ata uniform and constant angle of elevation.

3. A signature feedingdevice comprising a reel rotating about a horizontal axis and carrying several plates adapted to receive and transfer signatures, means for rotating the reel, means for maintaining all of the said plates at auniform and constant angle of elevation, and means for changing or adjusting the angle of elevation as required.

t. In a book sewing machine a reel mounted to rotate on a horizontal axis carrying a plate adapted to enter between the leaves of a folded sheet of paper to support it by contact with the fold, a vertically movable saddleadapted to enter between the leaves of. the folded sheet carried by the plate,

means for rotating the reel to bring the plate carrying the folded sheet over the saddle, and means for moving the saddle upward to enter between the leaves of the foldedsheet to lift it from the plate.

5. In a book sewing machine a reel mountedto rotate on a horizontal axis carrying a plate adapted to'enter between the leaves of a folded sheetof paper to seesaw I support it by contact with the fold, avertically movable saddle adapted to enter between the leaves of the folded sheet carried bythe plate,

means for rotating the reel to bring the plate carrying the folded sheet o'ver'the saddle, means for moving the saddle upward to enter between the leaves of the folded sheet to lift it from the plate, and means carried by the reel for separating the leaves of the folded sheet carried by the plate to facilitate entrance of the saddle.

6. In a book sewing machine a reel mounted to rotate on a horizontal axis carrying a plurality of plates each adapted to enter between the leaves of a folded sheet of paper to support it by contact with the fold, a vertically movable saddle adapted to enter between the leaves of the folded sheet car ried by the plate, means for rotating the reel to bring the plates carrying the folded sheet successively over the saddle, and means for moving the saddle upward to enter be-' tween the leaves of the folded sheet to lift it from the plate so timed with reference to the rotation of the reel as to cause the saddle to lift the folded sheet from each plate successively.

7. In a book sewing machine a reel carrying a plurality of plates each adapted to enter between the leaves of a folded sheet of paper to support it by contact with the fold, a vertically movable saddle adapted to enter between the leaves of the folded sheet carried by the plate, means for rotating the reel to bring the plates carrying the folded sheet successively over the saddle, means for moving the saddle upward to enter between the leaves of the folded sheet to lift it from the plate so timed with reference to the rotation of the reel as to cause the sad dle to lift the folded sheet from each plate successively and means carried by the reel for separating the leaves of the folded sheet to facilitate entrance of the saddle.

8. In a book sewing machine a reel mounted to rotate on a horizontal axis, a shaft carried by the reel carrying a plate adapted to enter between the leaves of a folded sheet to support it by contact with the fold, a saddle adapted to enter between the folds of a sheet to support it, and means for rotating the reel to bring the folded sheet over the saddle in such aposition that the saddle will enter between the leaves of the sheet and means for rotating the shaft carrying the plate to withdraw the plate so as to leave the folded sheet on the saddle.

9. In a book sewing machine a reel mounted to rotate on a horizontal axis, a shaft carried by the reel carrying a plate adapted to enter between the leaves of a folded sheet to support it by contact with the fold, a saddle adapted to enter between the folds of the sheet to support it, means for rotating tating the reel and means the reel to *bring. the folde'd sheet over the saddle in such position that the saddlewill enter betweeathe leaves of the sheet, means for rotating the shaft carrying the "plate'to withdraw-to plate so as to leave the folded sheet on the saddle, and means carried by I the reel forseparating-the leaves of the folded sheet tofadilitateentrance of the saddle.

10. In a book sewing machine a reel mounted to rotate on a horizontal axis, a shaft carried by the reel carrying a plate adapted to enter between the leaves of a folded sheet to support it by contact with the fold, a vertically movable saddle adapted to enter between the folds of the sheet to support it, means for rotating the reel to bring the folded sheet over the saddle in such a position that the saddle will enter I between the leaves of the sheet, means for moving the saddle upward to enter between the leaves of the sheet carried by the plate and means for rotating the shaft carrying the plate to withdraw thegplate. so as to leave the folded sheet on the saddle.

11. In a book sewing machine a reel a shaft carried by the reel carrying a plate adapted to enter between the leaves of a folded sheet to support it by contact with the fold, a vertically movable saddle adapted to enter between the folds of thesheet to support it, means for rotating the reel to bring the folded sheet over the saddle in such a position that the saddle will enter between the leaves of the sheet, means for moving the saddle upward to enter between the leaves of the folded sheet carried by the plate, means for rotating the shaft carrying the plate to withdraw theplate so as to leave the folded sheet on the saddle, and means carried by the reel for separating the leaves of the folded sheet carried by the plate to facilitate entrance of the saddle.

12. In a book sewing machine a reel mounted to rotate on a horizontal axis comprising spider arms having a shaft mounted to rotate therein, a plate carried by the shaft adapted to enter between the leaves of a folded .sheet of contact with the fold, a gear on the shaft, a stationary gear serving as a rack to cause the plate carrying gear to rotate the shaft carrying the plate, a saddle adapted to enter between the leaves of the folded sheet carried by the plate vertically movable in a path passing through the path of movement of the outer edge of the plate, means for rofor reciprocating the saddle.

'13. In a book sewing machine a reelv mounted to rotate on a horizontal axis comprising spider arms having a shaft mounted to rotate therein, a plate carried by the shaft adapted to enter between the leaves of a folded sheet of paper to support it by paper to support it by.

contact With the fold, a gear on the shaft, a stationary gear serving as a rack to cause the plate carrying gear to rotate the shaft carrying the plate, a saddle Vertically movable adapted to enter between the leaves of the folded sheet carried by the platein a path passing through the path of movement of the outer edge of the plate, means for ro tating the reel, means for reciprocating the saddle, and means carried by the spider arms 10 for separating the leaves of the sheet carried by the plate to facilitate entrance of the saddle. y

In testimony whereof I hereunto affix my signature.

EDWIN B. PIERCE. 

